typedef struct offsetof_expression_t offsetof_expression_t;
typedef struct va_start_expression_t va_start_expression_t;
typedef struct va_arg_expression_t va_arg_expression_t;
-typedef struct builtin_symbol_expression_t builtin_symbol_expression_t;
typedef struct builtin_constant_expression_t builtin_constant_expression_t;
typedef struct builtin_types_compatible_expression_t builtin_types_compatible_expression_t;
-typedef struct builtin_prefetch_expression_t builtin_prefetch_expression_t;
typedef struct classify_type_expression_t classify_type_expression_t;
typedef struct bitfield_extract_expression_t bitfield_extract_expression_t;
typedef struct label_address_expression_t label_address_expression_t;